MM912H634CV1AE Freescale Semiconductor, MM912H634CV1AE Datasheet - Page 274

• Manufacturer Part Number: MM912H634CV1AE
• Description: 64KS12 LIN2xLS/HS Isense
• Manufacturer: Freescale Semiconductor
• Series: -r

Specifications of MM912H634CV1AE

• Applications: Automotive
• Core Processor: HCS12
• Program Memory Type: FLASH (64 kB)
• Controller Series: HCS12
• Ram Size: 6K x 8
• Interface: LIN
• Number Of I /o: -
• Voltage - Supply: 5.5 V ~ 27 V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP Exposed Pad
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

4.39
Preface
Terminology
4.39.1
The SPI module allows a duplex, synchronous, serial communication between the MCU and peripheral devices. Software can
poll the SPI status flags or the SPI operation can be interrupt driven.
4.39.1.1
4.39.1.2
The SPI includes these distinctive features:
4.39.1.3
The SPI functions in two modes: run and stop.
For a detailed description of operating modes, please refer to
4.39.1.4
Figure 102
logic, baud rate generator, master/slave control logic, and port control logic.
Freescale Semiconductor
•
•
•
•
•
•
•
•
•
Master mode and slave mode
Selectable 8 or 16-bit transfer width
Bi-directional mode
Slave select output
Mode fault error flag with CPU interrupt capability
Double-buffered data register
Serial clock with programmable polarity and phase
Run mode
This is the basic mode of operation.
Stop mode
The SPI is inactive in stop mode for reduced power consumption. If the SPI is configured as a master, any transmission
in progress stops, but is resumed after CPU goes into run mode. If the SPI is configured as a slave, reception and
transmission of data continues, so that the slave stays synchronized to the master.
gives an overview on the SPI architecture. The main parts of the SPI are status, control and data registers, shifter
Serial Peripheral Interface (S12SPIV5)
Introduction
Glossary of Terms
Features
Modes of Operation
Block Diagram
MOMI
MOSI
MISO
SISO
SCK
SPI
SS
Serial Peripheral Interface
Slave Select
Serial Clock
Master Output, Slave Input
Master Input, Slave Output
Slave Input, Slave Output
Master Output, Master Input
MM912_634 Advance Information, Rev. 4.0
Section 4.39.4.7, “Low Power Mode
Options”.
274